Those anchors are nice.
Just for convenience and weight, we carry several sand bags, empty in transit, then when we need anchors we (ummmm, here I think the more accurate pronoun is "I") fill them with sand or rocks. Cam straps hold them securely to the feet of the any awning support.
The Allset ones weigh 28 lbs for the two. Our eight sandbags weigh 1 lb. Maybe for RVers the extra 27 lbs wouldn't make a difference, but I'm conscious of the GVWRs on the Xterra and SR-5, and even the F250 SD has its limits.
I do like, however, thinking "outside the box", and in the case of the Allset anchors these could be useful where space and surface are limiting factors.
Thanks for bringing these to our attention.
"I'm ahead of the game and can afford to take chances." --Theodore Roosevelt
'11 Mini Cooper Clubman, '04 Dodge Dakota 4X4